content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2013, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
   * in the United States and other countries.]
   *
   * ---------------------
   * SelectionManager.java
   * ---------------------
   * (C) Copyright 2013, by Michael Zinsmaier and Contributors.
   *
   * Original Author:  Michael Zinsmaier;
   * Contributor(s):   David Gilbert (for Object Refinery Limited);
   *
   * Changes:
   * --------
   * 17-Sep-2013 : Version 1 from MZ (DG);
   *
   */
  
  package org.jfree.chart.panel.selectionhandler;
  
  import java.awt.geom.GeneralPath;
  import java.awt.geom.Rectangle2D;
  import java.io.Serializable;
  
  /**
   * Provides methods to handle data item selection based on a selection region
   * or a selection point and to clear the current selection. 
   * 
   * @author zinsmaie
   */
  public interface SelectionManager extends Serializable {
  
      /**
       * selects the data item at the point x,y
       * @param x
       * @param y
       */
      public void select(double x, double y);
      
      /**
       * @param selection a rectangular selection area
       */
      public void select(Rectangle2D selection);
      
      /**
       * @param selection free defined selection area
       */
      public void select(GeneralPath selection);
  
      /**
       * clear the current selection (deselect all)
       */
      public void clearSelection();
      
  }
  